Toshiba RD-XV47KE Service Manual page 29

A
Are the video signals outputted to each pin of
CN1502?
CN1502 24PIN VIDEO-Y(I/P)-OUT
CN1502 30PIN VIDEO-Y(I)-OUT
CN1502 26PIN VIDEO-Pr/Cr-OUT
CN1502 28PIN VIDEO-Pb/Cb-OUT
CN1502 22PIN VIDEO-C-OUT
Are the video signals shown above inputted into
each pin of IC1509?
IC1509 51PIN VIDEO-Y(I/P)-OUT
IC1509 55PIN VIDEO-Y(I)-OUT
IC1509 52PIN VIDEO-Pr/Cr-OUT
IC1509 53PIN VIDEO-Pb/Cb-OUT
IC1509 57PIN VIDEO-C-OUT
Are the video signals outputted to each pin of
IC1509?
IC1509 36PIN Y-OUT
IC1509 34PIN C-OUT
IC1509 30PIN VIDEO-OUT 1 (AV1)
IC1509 22PIN VIDEO-OUT 2 (AV2)
IC1509 40PIN VIDEO-Y
IC1509 39PIN VIDEO-Pr/Cr
IC1509 38PIN VIDEO-Pb/Cb
Are the video signals outputted to the specific
output terminal?
Are the luminance signals outputted to the
S-VIDEO OUT terminal (JK1510)?
Are the chroma signals outputted to the
S-VIDEO OUT terminal (JK1510)?
Are the composite video signals outputted to
the VIDEO OUT (AV1) terminal (JK1504)?
Are the composite video signals outputted to
the VIDEO OUT (AV2) terminal (JK2001)?
Are the composite video signals outputted to
the VIDEO OUT terminal (JK1505)?
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No
Yes
No
Yes
No
Yes
No
No
No
No
No
1-11-6
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
Check the line between each pin of CN1502 and
each pin of IC1509, and service it if defective.
→ IC1509
CN1502 24PIN 51PIN
→ IC1509
CN1502 30PIN 55PIN
→ IC1509
CN1502 26PIN 52PIN
→ IC1509
CN1502 28PIN 53PIN
→ IC1509
CN1502 22PIN 57PIN
Is 5V voltage supplied to Pin(27,29,47,63) of
IC1509?
Is 9V voltage supplied to Pin(75) of IC1509?
Yes
Check the AL+5V(2) , AL+9V
Replace IC1509.
line and service it if defective.
Check the periphery of JK1510 from
Pin (36) of IC1509 and service it if defective.
Check the periphery of JK1510 from
Pin (34) of IC1509 and service it if defective.
Check the periphery of JK1504 from Pin (30) of
IC1509 and service it if defective.
Check the periphery of JK2001 from Pin (22) of
IC1509 and service it if defective.
Check the periphery of JK1505 from Pin (38, 39,
40) of IC1509 and service it if defective.
VIDEO-Y(I/P)-OUT
VIDEO-Y(I)-OUT
VIDEO-Pr/Cr-OUT
VIDEO-Pb/Cb-OUT
VIDEO-C-OUT
No
E3B90TR